It’s graduation weekend, and Sandy Channing, the popular class president of her small-town high school, should be enjoying the time of her life. But when her friends start disappearing, Sandy discovers they have unwittingly awakened the vengeful spirit of a girl they wronged long ago. Fighting for her sanity, Sandy must unlock a dark secret from her own past before it’s too late

An ex-cop turned con threatens to jump to his death from a Manhattan hotel rooftop. The nearest New York Police officer immediately responds to a screaming woman and calls dispatch. More Officers arrive with SWAT and tactical command along with fire-fighters. The police then dispatches a female police psychologist personally requested to talk him down from the ledge. However, things aren't as straightforward and clearcut as they appear to be.

Michiko a high school girl had committed suicide, but she was resuscitated by an alien parasitism. While she brutally murdered men and spawned one after another, her friend Rika met Mayumi. Mayumi was told that she was parasitized by a gentle alien. They decided to fight Michiko.